Related Experiment Video
Updated: Jun 6, 2026

09:38
Assessing Species-specific Contributions To Craniofacial Development Using Quail-duck Chimeras
Published on: May 31, 2014
Primer and interviews: molecular mechanisms of morphological evolution.
1Department of Neurobiology and Anatomy, University of Utah, Salt Lake City, Utah 84132, USA. jkiefer@neuro.utah.edu
Summary
Developmental biology explains how cells form complex organisms. Evolutionary developmental biology explores how body forms change over time, integrating principles from both fields.
Area of Science:
- Developmental biology
- Evolutionary biology
- Morphological evolution
Background:
- The development of embryos inspires awe and scientific inquiry into cellular processes like division, migration, and morphogenesis.
- Evolutionary developmental biology investigates the divergence of phenotypic traits over evolutionary timescales.
- Understanding fundamental developmental biology principles is crucial for comprehending the evolution of body form.
Purpose of the Study:
- To illustrate how developmental biology principles inform the study of morphological evolution.
- To bridge the gap between classic developmental biology and evolutionary perspectives on body form.
- To discuss current topics and future directions in morphological evolution.
Main Methods:
- This primer synthesizes basic principles of developmental biology.
- It integrates these principles with evolutionary theory.
- It includes a discussion with leading researchers in the field.
Main Results:
- A deep understanding of developmental biology has reshaped scientific thinking on the evolution of body form.
- The primer highlights the interconnectedness of developmental processes and evolutionary change.
- Current research integrates molecular and genetic mechanisms with evolutionary patterns.
Conclusions:
- Evolutionary developmental biology offers a powerful framework for understanding the diversity of life.
- Classic developmental biologists can gain valuable insights from evolutionary perspectives.
- Future research will likely focus on integrating developmental plasticity and genetic underpinnings of morphological change.
Related Concept Videos
Evolution of New Traits in Microbes
Microorganisms evolve rapidly due to their large population sizes and short generation times, often exhibiting measurable changes within days under laboratory conditions. Natural selection acts on standing genetic variation, enabling the retention and amplification of beneficial traits that confer fitness advantages in changing environments.Adaptive Pigment Regulation in RhodobacterIn Rhodobacter, a genus of purple non-sulfur bacteria, light-harvesting pigments such as bacteriochlorophyll and...
Genetics of Speciation
Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.The genetics of speciation involves the different traits or isolating mechanisms preventing gene exchange, leading to reproductive isolation. Reproductive isolation can be due to reproductive barriers that have effects either before or after the formation of a zygote. Pre-zygotic mechanisms prevent fertilization from occurring, and post-zygotic mechanisms...
Morphogenesis
Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
Synteny and Evolution
John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral chromosome underwent...
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral chromosome underwent...
The Evidence for Evolution
Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.The collection of fossils within sedimentary rocks give a record of common ancestry and often depicts the history of evolution.
Limits to Natural Selection
Organisms that are well-adapted to their environment are more likely to survive and reproduce. However, natural selection does not lead to perfectly adapted organisms. Several factors constrain natural selection.For one, natural selection can only act upon existing genetic variation. Hypothetically, redtusks may enhance elephant survival by deterring ivory-seeking poachers. However, if there are no gene variants—or alleles—for redtusks, natural selection cannot increase the prevalence of...

